** The Official ASUS P5N-E SLI & Ultra 650i Thread **

Kaiju said:
I've found that too, I have to run unlinked otherwise the RAM frequency would be miles too high.
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Are you trying to run 1:1 because it does just that - it runs the RAM at four times the CPU speed. You actually want SYNC MODE which runs the RAM at twice the CPU speed.
 
I've tried clockin' past 3Ghz, but am obviously hampered by a stock cooler until next week. As for the NB/SB, i've got 2x 120mm high CFM fans blowin' on them, however do you think i'd need a heatsink on the S/B and a better heatsink on the N/B to get to 3.2GHz? I'm currently at:

10Hrs Fine in Orthos...

1334QFSB (334x9) = 3.0GHz -, 67C max load (3-3-3-10 667DDR)
vCore 1.325v, nB 1.5v, vDimm 2.2v, +100mv used
Test bench: E4300, Stock Cooler, P5N-E, OCZ 2GB R2 XTC

WJA96 said:
Are you trying to run 1:1 because it does just that - it runs the RAM at four times the CPU speed. You actually want SYNC MODE which runs the RAM at twice the CPU speed.
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Yeah, it's all good now. :)
 
Im at 3.6 and all ive done is add fans with an ac pro. You dont need a heatsink on the sb and a 120mm fan is allready overkill but it cant hurt to try so its a case of finding whatever works best for you. Make sure you keep the case temp cool :).
Theres nothing wrong with the board or anything that needs drastically altering, better cooling gives better results. Its very fair like that
 
WJA96 said:
There are at least 3 'recipes' on these forums and they work with varying degrees of success. I'm running 450x8 on an E6600 totally stable and I'm still using the 0202 BIOS because no-one has ever shown me any practical improvement with the 0401 BIOS and 0307 is reputed to be a nightmare. The real trick seems to be in the Northbridge cooling. I'm pretty sure anyone who is getting a 50% overclock with Orthos stability is actively cooling the Northbridge.

It's a mark of how high user's expectations are now that they complain bitterly if they cannot overclock a processor by between 50 and 100%. I think it does go to prove that there is very little point in buying an E6600 when an E6300 will do 3.6GHz in the same motherboard.

They're not flaky, they need tweaking.
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maybe flakys not the right word though, but with it sometimes not booting when the QDR value ends with a zero or certain divides it picks simply don’t work in unlinked mode, in my eyes it’s certainly a picky board and not particular stable in unlinked mode.
 
Just got one of these boards with an e4300. I also found that some of the QFSB speeds would result in no boot. Even my first overclock attempt was no good at 850fsb unlinked. So I then went straight to 1066 and then 1333 10 mins later. 24 hours orthos stable on 3Ghz and it looks ok upto around 3.6ghz with some extra volts. Only have a scythe ninja here though and on vista 64 so hard to tell temps but may get a bit toasty after 3.6.

All in all i'm extremely pleased and considering I haven't overclocked anything for a long time it was a breeze. £180 for a 3.6ghz capable machine :)
 
Theres a review on the site page where you buy it of the asus 650i
saying u cant have the tuniq tower with the fan blowing towards the rear
extraction with this board is that true?
Also seems to be a lot of people needing to cool the northbridge?
 
geff_r said:
Also seems to be a lot of people needing to cool the northbridge?
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If you need extreme FSB's then some boards require the highest Northbridge voltage option to run Orthos stable. That results in the passive Northbridge heatsink getting extremely hot. This appears to be a limiting factor in overclocking so users pushing the overclocking envelope go for active cooling, or water cooling. This also applies to the 680i boards and (less) to Gigabyte's DS3 and DS4.

The problem is actually made worse by using after-market CPU coolers as the usually don't push air over the board 360-degrees sideways like the stock Intel cooler. The Stock cooler actually does a brilliant job of cooling the motherboard components around the socket.

The motherboard manufacturers are really pushing the envelope of what is possible with passive cooling. They get away with it at stock speeds, but for overclocking, most people would go for better cooling. It's a bit like replacing the stock CPU cooler. It works fine at stock speeds, but for overclocking you need something better.
 
geff_r said:
Theres a review on the site page where you buy it of the asus 650i
saying u cant have the tuniq tower with the fan blowing towards the rear
extraction with this board is that true?
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I don't know, but I don't put a lot of store in those reviews. One of the 5-star 'reviews' is a question about Crossfire. Of all the reviews I have seen on those pages Dark_Angel's is the only one I know to be by an OcUK Forums member. Pihrana, who posted the item in question is not an OcUK Forums member under that nickname, so we can't query his comment.

I do think that if you're picking a motherboard on the basis of whether it will fit a Tuniq Tower in that orientation, then the P5B and DS3 both definitely take that cooler that way and clock very well indeed.
 
WJA96 said:
I don't know, but I don't put a lot of store in those reviews. One of the 5-star 'reviews' is a question about Crossfire. Of all the reviews I have seen on those pages Dark_Angel's is the only one I know to be by an OcUK Forums member. Pihrana, who posted the item in question is not an OcUK Forums member under that nickname, so we can't query his comment.

I do think that if you're picking a motherboard on the basis of whether it will fit a Tuniq Tower in that orientation, then the P5B and DS3 both definitely take that cooler that way and clock very well indeed.
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I have this board and the tuniq and it fits fine blowing out towards the rear of the case. The retention clips rest against some capacitors and its pretty tight, but it wasn't difficult to get the thing fitted.
 
EvilGrin said:
I have this board and the tuniq and it fits fine blowing out towards the rear of the case. The retention clips rest against some capacitors and its pretty tight, but it wasn't difficult to get the thing fitted.
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Those reviews are dodgy/made up, I reckon. Have you seen the Abit IP-95 ones? There are 4 consecutive reviews claiming all sorts of mega-overclocks on that motherboard. Turns out the FSB doesn't go above 350 so every one of those reviews is fiction. It has been raised with OcUK, but the reviews are still there. I tried to post my own review of the P5N-E SLi, but it wouldn't let me. Very fishy.
 
The courier just tried to deliver mine. I took one look at the crushed packaging and told him there was no way in hell i am signing for that. Looks like someone jumped up and down on the damn thing. Phoned the retailer that i got it from and they agreed with me, passed the phone to the courier and they told him to take it back. They are now sending me a new one. Now i have a 4300 (which was ok and in a different package) sitting here gagging to be used. :(

Just had my latest edition of CustomPC mag delivered and they have slated this board. They attack it for having a poor layout, that awful Vdroop and not clocking their 6700 too well. They did'nt say what bios they were using though.
 
pastymuncher said:
Just had my latest edition of CustomPC mag delivered and they have slated this board. They attack it for having a poor layout, that awful Vdroop and not clocking their 6700 too well. They did'nt say what bios they were using though.
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Its running my E6300 at 3.3 (5 hours Orthos stable so far), id say thats good value for money from a Mobo that costs less than £90.
Id say that they are using the original Bios.
 
pastymuncher said:
Just had my latest edition of CustomPC mag delivered and they have slated this board. They attack it for having a poor layout, that awful Vdroop and not clocking their 6700 too well. They did'nt say what bios they were using though.
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Well, some of it's true. It does have quite bad Vdroop.
 
I've ordered on of these:

http://www.zalman.co.kr/eng/product/view.asp?idx=200&code=014

zmnbf47cpwr8.jpg


Was going to go for the Thermalright HR-05 SLI Chipset Cooler, but this was much cheaper.

Will let you know if its up to the job of keeping the chipset temps under control.
 
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